Update Gemfile

Author: parndt

Gemfile

@@ -27,7 +27,7 @@ gem 'refinerycms-i18n', github: 'refinery/refinerycms-i18n', branch: 'main'
 # Add support for refinerycms-acts-as-indexed
 gem 'refinerycms-acts-as-indexed', '~> 4.0', '>= 4.0.0',
   github: 'refinery/refinerycms-acts-as-indexed',
-  branch: 'master'
+  branch: 'main'
 
 # Add the default visual editor, for now.
 gem 'refinerycms-wymeditor', ['~> 3.0', '>= 3.0.0']